/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.netbeans.modules.php.project.connections.sync.diff;

import java.nio.charset.Charset;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.netbeans.spi.queries.FileEncodingQueryImplementation;
import org.openide.filesystems.FileObject;
import org.openide.util.lookup.ServiceProvider;

/**
 * Provide correct encoding of files for diff action. These files are located
 * in the system temp directory so the default encoding would always be used.
 *
 * Will be removed once issue #212525 is fixed.
 */
@ServiceProvider(service=FileEncodingQueryImplementation.class, position=2)
public class DiffFileEncodingQueryImpl extends FileEncodingQueryImplementation {

    private static final Map<FileObject, Charset> CHARSETS = new ConcurrentHashMap<>();


    @Override
    public Charset getEncoding(FileObject file) {
        return CHARSETS.get(file);
    }

    public static void addCharset(FileObject fileObject, Charset charset) {
        CHARSETS.put(fileObject, charset);
    }

    public static void clear() {
        CHARSETS.clear();
    }

}
